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mario62 [17]
3 years ago
6

Explain the formation of a waterfall 12 marks​

Geography
2 answers:
swat323 years ago
7 0

Answer:

Waterfalls often form in the upper stages of a river where it flows over different bands of rock. It erodes soft rock more quickly than hard rock and this may lead to the creation of a waterfall.

Formation of a waterfall:

▪︎The soft rock erodes more quickly, undercutting the hard rock.

▪︎The hard rock is left overhanging and because it isn’t supported, it eventually collapses.

▪︎The fallen rocks crash into the plunge pool. They swirl around, causing more erosion.

▪︎Over time, this process is repeated and the waterfall moves upstream.

▪︎A steep-sided gorge is formed as the waterfall retreats.

Gemiola [76]3 years ago
5 0

Answer:

<u><em>A waterfall is an erosional landform, which occurs where there is a layer of hard rock on top of a layer of softer rock. Erosional processes such as hydraulic action and abrasion occur as the river flows downstream, however differential erosion takes place as the softer rock erodes faster.</em></u>

Explanation:

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mixas84 [53]

Answer:

False

Explanation:

The increase in cloud-cover occurs with introduction of larger amounts of aerosols into the atmosphere. The increased amounts of carbon dioxide into the atmosphere will result in an increase of the greenhouse effect. Basically, the carbon dioxide is a greenhouse gas, having properties that enable it to trap the heat into the Earth's atmosphere. By doing so, the carbon dioxide will contribute to warmer atmosphere, thus warmer global climate. The effect of it will be that the Earth will have rise in the temperatures on global scale. The ice sheets will mostly melt, resulting in sea level rise. The rise of the sea levels will mean more ocean water, and less land, which in turn will create climate conditions that will be warm and wet in most of the planet.

4 0
3 years ago
Examine the map of North and South American rivers.
wolverine [178]

Answer:

<h2><em><u>Figure</u></em><em><u> </u></em><em><u>D</u></em><em><u>:</u></em> </h2><h2><em><u>Amazon</u></em><em><u> </u></em><em><u>river</u></em></h2>

Explanation:

<em><u>The Amazon is considered the world's largest river</u></em> by volume, but scientists have believed it is slightly shorter than Africa's Nile.

The Brazilian scientists' 14-day expedition extended the Amazon's length by about 176 miles (284 kilometers), making it 65 miles (105 kilometers) longer than the Nile.

<em>Amazon river is located in South America </em>

5 0
3 years ago
In any particular culture, an idea or way of doing things that is common to the culture is called a ____________.
lozanna [386]
In any particular culture, an idea or way of doing things that is common to the culture is called a cultural norm.
6 0
3 years ago
_ are like rivers flowing in the ocean
Sauron [17]

Answer:

no

Explanation:

a river is a small body of water that is seperated from the "Ocean"

and the ocean is a Big a.s.s thing of water:)

4 0
3 years ago
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IRISSAK [1]

Answer:

I believe that the discovery of new artifacts can bring many improvements to historical interpretations along with additional information for understanding historical facts. Thus, new causes can be found and analyzed that could lead to a certain phenomenon.

8 0
3 years ago
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